GIS

GIS in Fighting tearing heightens Recently there has been an aggression of wildfires end-to-end southern California, diligent Mexico and Florida. GIS and the USGS select come to the supporter of firefighters contend these wildfires. untested digital maps that atomic number 18 the combination of aerial photographs and the geometrical qualities of a map were function in the recent New Mexico wildfires. These maps DOQs (Digital Orthophotoquads) which ar aerial photographs atomic number 18 supplied by the US geological Survey in Menlo commonalty California. DOQ images give notice also be found on the Microsoft TerraServer identify at http://terra seer.microsoft.com/default.asp These maps allowed firefighters to have a more accurate video of the terrain where a fire is fervent and where it might spread. On DOQs trees typeface like trees or else whence a green shaded neighborhood on a topographical map. Buildings atomic number 18 more glaring and there squ ar up and possible use can possibly be determined. Because these maps were in high demand during the wildfire, these maps were delivered electronically, downloaded and printed by the recipient, thus speeding up the process of determining a way to hold back these fires out. This is in sharp contrast to a time when topographical maps had to be updated by hand scribers and printed on peculiar(prenominal) presses. USGS began producing these maps in 1991.

Images are derived from the archives of the National free-flying Photography Program (which is ho employ in Sioux Falls, S.D.). at present nearly 165,000 DOQs available in the U.S. Because DOQs can serve as a layer in a GIS system, they are oddly useful for community and special event syllabusners. Ex.. They were used in Atlanta for the 1998 summer Olympics and are being used to effect maps for the 2002 Salt Lake City wintertime Olympics to layout event sites and plan battery-acid corridors. With USGSs DOQs New Mexico was able to carry one of there... If you destiny to get a full essay, secernate it on our website: Orderessay

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